@inproceedings{SIGIR-2013-ChaBHC,
	author        = "Youngchul Cha and Bin Bi and Chu-Cheng Hsieh and Junghoo Cho",
	booktitle     = "{Proceedings of the 36th International ACM SIGIR Conference on Research and Development in Information Retrieval}",
	doi           = "10.1145/2484028.2484086",
	isbn          = "978-1-4503-2034-4",
	pages         = "223--232",
	publisher     = "{ACM}",
	title         = "{Incorporating popularity in topic models for social network analysis}",
	year          = 2013,
}